Separator



Nov. 16,1926. I I "1307,138

- 'W.S.SCHOFIEL.Q

SEPARQTOR Filed April 10, 1926 2 Sheets-Sheet 1 Nov. 16, 1926. 1,607,138

W. 55. SCHOFIELD SEPARATOR Filed April 10, 1926 2 Sheets-Sheet 2Patented Nov. 16,1926; 7 i

7 WILLIAM S. SCHOFIELD, OF PHILADELPHTA, PEI\TNSYLVANIA.

SEPARATOR.

Application filed April 10, 1926. Serial no. 101,054.

My invention relates to separators and'is especially adapted for use intextile mills.

coarse and fine fibers, or a mixture of fibers or groups of fibersdiffering in both gravity and bulk. 'l Vhen this mixed stock isdischarged from the pneumatic conveyor 1t 18 usually discharged into abin to' prevent its being widely scattered by the force of the aircurrent coming from the conveyor pipe. In the bin the stock, instead ofsettling in a cone-shaped pile, is blown to the periphery of the binleaving a cone-shaped space in the center of the bin with the apex ofthe cone downward. The heavier and coarser constituents of the stocksettle at or near the bottom of the bin while the lighter and finerconstituents are blown upward and gather about the interior wall of thebin and above the heavier and coarser constituents. This produces anon-uniform mixture of the stock which is highly undesirable. Toovercome the separating tendency the usual practice is to station 'a manin the bin to agitate the This is a highly d1sagreestock by hand. ablejob and the results. are far from satisfactory. Furthermore the stockhas to be removed from the bin before it can go to the nextoperation.This consumes time and adds to the expense.

The ob ect of my invention is to provide automatic means for separatingthe air cur rent from the stock as it is discharged from the conveyorthereby permitting the stock to be discharged Where it is wanted,Without being injuriously affected by the air current, therebydispensing with the bin and the man in the bin. V V

These objects, and other advantageous ends which willbe describedhereinafter, I attain in the following manner, reference being had tothe accompanying drawings in which y Figure 1 is a side elevation of aseparator, embodying my invention, showing it suspended from a conveyorpipe,

Figure 2 an end view of the same looking from the left of Figure 1,Figure 3 a section on line 3-3 of Figure 2, and g V Figures: asecti'onon line 44 of Figure 3.

Referring to the' drawings, the numeral over the pipe.

arr erries;

1 indicates a conveyor pipe having a dis- Y charge opening 2 adapted tobeclosed by a gate 3 which. also serves to arrest the current of airthrough that part of the conveyor which is beyond the dischargeopening.The

separator issuspended from the conveyor pipe by. pairs of arms 1connected at their upper ends by bolts 5 extending transversely Belowthe pipe, arms a are connected by pairs of bars 6 and 7 parallelwit-hthe conveyor. pipe. A frame member 8 is suspended between thelowerpairs of bars '7, preferably about midway. of their length. Thisframe'member carries bearings 9 for the axle 10 of a cylinder 11 theperiphery .of which is composed of. wire netting. The cylinder isprovided at each end ly at an angle to the radii. Paddles 13, shown asfour in number, extend between the flanges radially of the cylinder.-For use the cylinder is positioned somewhat belowthe conveyor pipe andwith its axis in range of the discharge but sufficiently beyond thedischarge opening of the pipe to place the more with a guide flange 12which flares outward- I remote or rear halfof the cylinder out of wrange of the stock coming from the conveyor. A deflector 14: extends,from frame member 8 to bars 6 and encloses the rear half of the cylinderexcept atthe top and can opening 15 opposite-the upper half of thecylinder for escape of air;

In operation the stock is blown against the upper front of the cylinderand falls The cylinder roupon one of the paddles. v tates inanti-clockwise direction and the" stoclrfalls off. The natural path ofthe air current is throughthe cylinderto the dc Its force is partlydissipated by its ilector. impact with the exterior of'the cylinder, the

7 stock carried thereby and the paddles. Part through which'the stockpasses as it falls 7 from the separator is in practical equilibrium andthe stock falls in a conical pile without disturbancebythe air. Theresult isa far morev uniform ,mlxture than gould be attamed by the oldplan and atntar less expense.

While I have described my invention as taking a particular form, it willbe understood that the various'part-s may be changed without departingfrom the spirit thereof, and hence I do not limit myself to the preciseconstruction set forth, but consider that i am at liberty to make suchchanges and alterations as fairly come within the scope oi the appendedclaims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is 1. An air eparator for pneumatic conveyorsincluding a. rotatably mounted cylinder of wire netting adapted to bemounted below a discharge opening of the conveyor with its axisadjacentto and extending transversely of the path of thejdischargedmaterial, whereby said material willtall onto and rotate the cylinder.

'2. An air separator "for pneumatic con 'v'eyors including a rotatablymounted cylinder out wire netting having a series of re'dially'extending paddles and adapted to be mounted belowa dischargeopening of the conveyor with its axis adjacent to and extendingtransversely of the path of the discharged material, whereby saidmaterial will fall onto and rotate the cylinder.

3. An air separator for pneumatic conveyors including a. rotatablymountedcylinder i wire' netting having at each end a guide flange andadapted to be mounted below a discharge opening of the conveyor with itsaxis adjacent to and extending transversely of the path of thedischarged material, whereby said material will fall onto and rotate thecylinder.

' 4. An air separator for pneumatic con veyors including a rotatablymounted cylinder of wire netting having at each end a guide flange andprovided with aseries of radial paddles extending between the guideflanges, and means for mounting the cylinder below a discharge openingofthe conveyor with the axle of the cylinder ad acent to and extendingtransversely of the vpath of the discharged material, whereby rear haltof the cylinder.

An air separator for pneumatic con veyors including a rotatably mountedcylinder of wire netting adapted to be mounted below a-discharge openingofthe conveyor with its axis adjacent to and extending transversely ofthe path of the discharged ll'lEttBllEtl, whereby said material willfall onto and rotate the cylinder, and a deflector enclosing asubstantial part of the rear half of the cylinder, the deflectorextending from line vertically beneath the axis of the cylinder to aline above the body of the cylinder and having an opening in the rear ofthe upper half of the cylinder.

7. An air separator for pneumatic con veyors including a rotatablymounted cyl inder of wire netting having at'each end a guide flange andprovided with a series of radial paddles extending between the guideflanges; a deflector enclosing a substantial part of the rear half ofthe cylinder, and means for mounting the cylinder below a dischargeopening of the conveyor with the axis of the cylinder adjacent to andextending transversely of the path of the discharged material,wherebysaid material will fall onto and rotate the cylinder.

In testimony whereof I have'signed my name to this specification.

WILLIAM S. SCHOFIELD.

